电测与仪表2018，Vol.55Issue(4)：29-33,5.
分级供电系统单相接地故障诊断技术的研究
Research on single-phase-to-ground fault diagnosis technology for graded power supply system
摘要
Abstract
Once the single-phase-to-ground fault occurs in the graded power supply system,the primary substation and the secondary switching stations will select the fault line,and the large number of alarm information will cause misjudge of the dispatchers.In this paper,a single-phase-to-ground fault diagnosis technique based on rough set theory is proposed,which utilizes the data reduction capability of rough set theory to effectively integrate the relevant information,and eliminate redundant information to improve the rapidity of identification information.In addition,in the process of diagnosis,the strong fault tolerance of the rough set theory is used to improve the accuracy of the diagnosis by filtering out the contradictory information and correcting the contradictory information automatically.This paper designs a practical single-phase-to-ground fault diagnosis system,which fully verifies the correctness of the diagnosis technology by the practical application of data analysis.关键词
分级供电系统/粗糙集/决策表/故障诊断Key words
graded power supply system/rough set/decision-making table/fault diagnosis分类
信息技术与安全科学引用本文复制引用
杨海生,杨孟卓,史承杰,齐郑..分级供电系统单相接地故障诊断技术的研究[J].电测与仪表,2018,55(4):29-33,5.基金项目
国家自然科学基金资助项目(51277066) （51277066）
